JPH0641856A - Reinforcing material for stamp-forming - Google Patents
Reinforcing material for stamp-formingInfo
- Publication number
- JPH0641856A JPH0641856A JP3335868A JP33586891A JPH0641856A JP H0641856 A JPH0641856 A JP H0641856A JP 3335868 A JP3335868 A JP 3335868A JP 33586891 A JP33586891 A JP 33586891A JP H0641856 A JPH0641856 A JP H0641856A
- Authority
- JP
- Japan
- Prior art keywords
- reinforcing material
- glass
- stamp
- forming
- glass fiber
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Abstract
Description
【０００１】[0001]
【産業上の利用分野】本発明は、スタンプ成形用補強材
に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a stamp molding reinforcing material.
【０００２】[0002]
【従来の技術】ガラス繊維シート等の補強材に、熱可塑
性樹脂を含浸させたシートは、スタンプ成形法によりＦ
ＲＴＰを製造するための成形材料（スタンプ成形用シー
ト）として広く用いられている。又、補強用材として
は、ガラス繊維よりなるマットが用いられることが多
い。ガラス繊維マットとしては、長尺のガラス繊維束を
ループ状に堆積させたＣＳＭ又はガラス繊維束切断物
（ＣＳ）を堆積させたＣＭ、或はＣＳを分散液中に投入
撹拌して開繊し、抄紙することによって得られるガラス
紙等が用いられる。補強材と熱可塑性樹脂シートとを重
ねて挟圧、加熱し、或は補強材に熱可塑性樹脂の粉末を
撒布し、加圧、加熱する等の方法で補強材に軟化、或は
溶融した熱可塑性樹脂を含浸させることによりスタンプ
成形用シートが製造される。2. Description of the Related Art A sheet obtained by impregnating a reinforcing material such as a glass fiber sheet with a thermoplastic resin is subjected to F molding by a stamp molding method.
It is widely used as a molding material (stamp molding sheet) for producing RTP. A mat made of glass fiber is often used as the reinforcing material. As the glass fiber mat, CSM in which a long glass fiber bundle is deposited in a loop shape, CM in which a cut glass fiber bundle (CS) is deposited, or CS is charged into a dispersion liquid and stirred to open. A glass paper obtained by making a paper is used. The reinforcing material and the thermoplastic resin sheet are overlapped and sandwiched and heated, or the reinforcing material is sprinkled with a thermoplastic resin powder, and pressure or heat is applied to soften or melt the reinforcing material. A stamp molding sheet is manufactured by impregnating a plastic resin.
【０００３】[0003]
【発明が解決しようとする課題】従来技術は、次のよう
な問題点を有する。ＣＳＭは製造が容易で、低コストで
製造できるが、ＣＳＭを補強材として用いたスタンプ成
形用シートは、成形性が悪く、複雑な曲面或は細い凹凸
を有するＦＲＴＰ成形品を製造することは困難である。
ＣＭを用いることにより成形性を向上させることができ
るが、充分な強度を有するＦＲＴＰ成形品を得ることは
できなかった。ガラス紙を補強材として用いたスタンプ
成形用シートは、成形性は良好であるが、抄紙設備は高
価であり、生産性も低く、コストも大となる。本発明
は、上述した従来技術の問題点を解消し、成形性も良好
であり、強度の大きいＦＲＴＰ成形品をうることができ
るようなスタンプ成形用補強材を提供することを目的と
している。The prior art has the following problems. CSM is easy to manufacture and can be manufactured at low cost, but the stamp molding sheet using CSM as a reinforcing material has poor moldability, and it is difficult to manufacture FRTP molded products having complicated curved surfaces or fine irregularities. Is.
Although the moldability can be improved by using CM, a FRTP molded product having sufficient strength could not be obtained. A stamp forming sheet using glass paper as a reinforcing material has good formability, but the papermaking equipment is expensive, the productivity is low, and the cost is high. It is an object of the present invention to solve the above-mentioned problems of the prior art, to provide a stamp molding reinforcing material which has a good moldability and can obtain a FRTP molded product having a high strength.
【０００４】[0004]
【課題を解決するための手段】本発明においては、上述
の目的を達成するために、スタンプ成形用補強材を、ガ
ラス単繊維の切断物２０〜９５ｗｔ％と、１，０００ｍ
当りの重量が１０〜５００ｇｒのガラス繊維束切断物８
０〜５ｗｔ％とで形成する。In the present invention, in order to achieve the above-mentioned object, a reinforcing material for stamp molding is formed by cutting 20 to 95 wt% of glass single fiber and 1,000 m.
8 to 8 pieces of glass fiber bundles with a weight of 10 to 500 gr
It is formed with 0 to 5 wt%.
【０００５】次に、本発明を更に具体的に説明する。ガ
ラス単繊維としては、平均直径６〜２５μｍ、望ましく
は９〜２０μｍの物を、又ガラス繊維束としては、上記
のガラス繊維を５０〜１，６００本、望ましくは８０〜
４００本集束してなる、Ｔｅｘ即ち１，０００ｍ当りの
重量（ｇｒ）が１０〜５００、望ましくは１５〜３００
のものが適当である。ガラス繊維同志を結合し、繊維束
とするために使用される集束剤としては、被膜形成剤と
して、エポキシエマルジョン等を１〜１０ｗｔ％、望ま
しくは３〜７ｔ％、潤滑剤として、ノニオン系界面活性
剤等を０．０５〜１．５ｗｔ％、望ましくは０．１〜１
ｗｔ％、アミノシランのようなカップリング剤を０．０
５〜１．５ｗｔ％、望ましくは０．１〜１ｗｔ％含む物
を好適に使用できる。集束剤の附与量は、固型分とし
て、ガラス繊維に対し０．１〜１．５ｗｔ％、望ましく
は０．２〜１ｗｔ％とするのが適当である。Next, the present invention will be described more specifically. As the glass single fibers, those having an average diameter of 6 to 25 μm, preferably 9 to 20 μm, and as the glass fiber bundle, 50 to 1,600 of the above glass fibers, preferably 80 to
Tex, that is, 400 bundles, having a weight (gr) per 1,000 m of 10 to 500, preferably 15 to 300
The ones are suitable. As a sizing agent used for binding glass fibers together to form a fiber bundle, an epoxy emulsion or the like is used as a film forming agent in an amount of 1 to 10 wt%, preferably 3 to 7 t%, and a nonionic surfactant as a lubricant. 0.05-1.5 wt%, preferably 0.1-1
wt%, 0.0% coupling agent such as aminosilane
A substance containing 5 to 1.5 wt%, preferably 0.1 to 1 wt% can be preferably used. The amount of the sizing agent added is 0.1 to 1.5% by weight, preferably 0.2 to 1% by weight, based on the glass fiber, as a solid content.
【０００６】又、ガラス単繊維の長さは３〜１，０００
ｍｍ、望ましくは、６〜３００ｍｍ、ガラス繊維束の長
さは３〜１，０００ｍｍ、好ましくは６〜３００ｍｍと
するのが良い。このようなガラス単繊維は、ガラス繊維
束を常法に従い、高圧空気の作用により開繊することに
よって製造することができる。ガラス単繊維、ガラス繊
維束とを所定の割合で、コンベア上に落下、堆積させる
ことにより、本発明スタンプ成形用補強材を製造するこ
とができる。The length of the glass single fiber is 3 to 1,000.
mm, preferably 6 to 300 mm, and the length of the glass fiber bundle is 3 to 1,000 mm, preferably 6 to 300 mm. Such a glass single fiber can be produced by opening a glass fiber bundle according to a conventional method by the action of high pressure air. By dropping and depositing glass single fibers and glass fiber bundles on a conveyor at a predetermined ratio, the stamp forming reinforcing material of the present invention can be manufactured.
【０００７】又、特許出願人が別途出願したように、ガ
ラス繊維を集束してなるガラス繊維束を、張力を与えた
状態で、弯曲させて引っ張り、次いで切断し、切断物を
落下、堆積させ、この際、張力を所定範囲に保つことに
より、ガラス単繊維と、ガラス繊維束を所望割合で含む
補強材をうることができる。As the patent applicant filed separately, a glass fiber bundle formed by bundling glass fibers is bent and pulled while being tensioned, then cut, and cut pieces are dropped and deposited. At this time, by maintaining the tension within a predetermined range, it is possible to obtain a reinforcing material containing a single glass fiber and a glass fiber bundle in a desired ratio.
【０００８】ガラス単繊維とガラス繊維束の割合は、ガ
ラス単繊維及び繊維束が、夫々２０〜９５ｗｔ％、８０
〜５ｗｔ％、望ましくは夫々４０〜９０ｗｔ％、６０〜
１０ｗｔ％とするのが適当であり、両者の比率を上述の
割合とすることにより、極めて好適な結果の得られるこ
とが判明した。その理由は充分明らかではないが、従来
の常識に反し、ガラス単繊維が、ＦＲＴＰの強度の増大
に寄与し、ガラス繊維束が、スタンプ成形用シートを加
圧、加熱するときの流動性を向上させるものと思わる。The glass single fiber and the glass fiber bundle have a ratio of the glass single fiber and the fiber bundle of 20 to 95 wt% and 80, respectively.
~ 5 wt%, preferably 40-90 wt%, 60-
It is suitable to be 10 wt%, and it has been found that by setting the ratio of both to the above-mentioned ratio, a very suitable result can be obtained. Although the reason is not clear enough, contrary to the conventional wisdom, the glass single fiber contributes to the increase in the strength of FRTP, and the glass fiber bundle improves the fluidity when pressing and heating the stamp forming sheet. I think it will.
【０００９】本発明補強材は、そのまま使用することも
できるが、補強材を構成するガラス繊維同志を結合する
ことにより、ハンドリング性を高め、形状保持性を与え
ることができる。例えば、補強材の上面から結合剤を撒
布し、要すれば加熱することにより、ガラス繊維同志を
結合することができる。或は、望ましくは補強材と不織
布を重ね、常法に従い、ニードリングを行うことによ
り、ガラス繊維同志を結合することができる。更に又、
特許出願人が別途特許出願したように、５０〜２００ｍ
／ｓｅｃ、望ましくは１００〜１７０ｍ／ｓｅｃの高速
空気流を補強材に吹付け、この高速空気流でガラス繊維
同志をからませて結合することもできる。なお、空気の
吹付けは、補強材を、目の細い金網等で、挟圧、支持し
た状態で両面から行うのが好ましい。The reinforcing material of the present invention can be used as it is, but by binding the glass fibers constituting the reinforcing material together, it is possible to enhance the handling property and give the shape retaining property. For example, the glass fibers can be bonded together by spreading a binder from the upper surface of the reinforcing material and heating if necessary. Alternatively, it is possible to bond the glass fibers together by stacking the reinforcing material and the non-woven fabric and performing needling according to a conventional method. Furthermore,
50 to 200m, as the patent applicant filed a separate patent
It is also possible to blow a high-speed air flow of / sec, preferably 100 to 170 m / sec to the reinforcing material, and to entangle the glass fibers with each other to bond them together. In addition, it is preferable that the air is blown from both sides in a state where the reinforcing material is pinched and supported by a wire mesh having a fine mesh.
【００１０】本発明補強材に熱可塑性樹脂を含浸させる
ことにより、スタンプ成形用シートを得ることができ
る。熱可塑性樹脂としては、ＰＥ、ＰＰ、ＮＹ、ＰＥ
Ｔ、ＰＢＴ、ＰＰＳ等を好適に使用することができる。
熱可塑性樹脂の含浸方法に特に限定はなく、常法を使用
できる。例えば、補強材と熱可塑性樹脂フィルムを重ね
合わせ、挟圧、加熱してもよく、或は補強材に熱可塑性
樹脂粉末を撒布し、加圧、加熱してもよい。補強材に含
浸せしむべき熱可塑性樹脂の量は、用途等に応じて適宜
定めうるが、通常補強材の重量が、補強材と熱可塑性樹
脂の合計量の１０〜５０ｗｔ％、望ましくは２０〜４０
ｗｔ％程度となるように定めるのが適当である。A stamp forming sheet can be obtained by impregnating the reinforcing material of the present invention with a thermoplastic resin. Thermoplastic resins include PE, PP, NY, PE
T, PBT, PPS and the like can be preferably used.
The method of impregnating the thermoplastic resin is not particularly limited, and a conventional method can be used. For example, the reinforcing material and the thermoplastic resin film may be superposed and then pressed and heated, or the reinforcing material may be sprinkled with thermoplastic resin powder and pressed and heated. The amount of the thermoplastic resin to be impregnated in the reinforcing material can be appropriately determined according to the application, etc., but the weight of the reinforcing material is usually 10 to 50 wt% of the total amount of the reinforcing material and the thermoplastic resin, and preferably 20 to 40
It is appropriate to set it to be about wt%.
【００１１】[0011]
【作用】ガラス単繊維の切断物２０〜９５ｗｔ％と、
１，０００ｍ当りの重量が１０〜５００ｇｒのガラス繊
維束切断物８０〜５ｗｔ％とよりなる補強材を用いるこ
とにより、成形性及びＦＲＴＰ成形品の強度を向上させ
る。Function: 20 to 95 wt% of cut glass single fiber,
By using a reinforcing material composed of 80 to 5 wt% of a glass fiber bundle cut product having a weight per 1,000 m of 10 to 500 gr, the moldability and the strength of the FRTP molded product are improved.
【００１２】[0012]
【実施例】平均直径１３μｍ、長さ１３ｍｍのガラス単
繊維８０重量部と、平均直径１３μｍのガラス繊維を１
７０本集束してなる、Ｔｅｘ５７の繊維束を１３ｍｍの
長さに切断した繊維束切断物２０重量部とを、コンベア
上に、９５０ｇｒ／ｍ2 の割合で落下、堆積させた。次
いで、この体積物にＰＰ繊維よりなる３０ｇｒ／ｍ2 の
不繊布を重ねて、ニードリングした。Example 1 80 parts by weight of glass single fiber having an average diameter of 13 μm and length of 13 mm and 1 part of glass fiber having an average diameter of 13 μm were used.
20 parts by weight of a fiber bundle cut product obtained by cutting 70 Tex57 fiber bundles into a length of 13 mm were dropped and deposited on a conveyor at a rate of 950 gr / m 2 . Next, a 30 gr / m 2 non-woven fabric made of PP fiber was placed on this volume and needling.
【００１３】[0013]
【実験例】実施例で得られた補強材の両面に０．８ｍｍ
のＰＰ製フィルムを重ね、１０Ｋｇ／ｃｍ2 Ｇの圧力を
加えつつ、２００℃に加熱し、ＰＰを補強材を含浸さ
せ、ＰＰが均一に含浸された、スタンプ成形用シートを
得た。このスタンプ成形用シートを用い、一対の型を用
いて、圧力２００Ｋｇ／ｃｍ 2 Ｇ、温度２００℃でスタ
ンプ成形を行ない、型の凹凸を忠実に再現した均質なＦ
ＲＴＰ成形品をうることができた。[Experimental example] 0.8 mm on both sides of the reinforcing material obtained in the example
Layered PP films, 10 kg / cm2 G pressure
While adding, heat to 200 ℃ and impregnate PP with the reinforcing material.
A sheet for stamp molding, which is uniformly impregnated with PP.
Obtained. Using this stamp molding sheet, use a pair of molds
And pressure is 200 kg / cm 2 G, temperature 200 ℃
Uniform F that has been faithfully reproduced as the mold irregularities
An RTP molded product could be obtained.
【００１４】[0014]
【発明の効果】成形性の良好なスタンプ成形用シートを
得ることができ、又強度の大きいＦＲＴＰ成形品を得る
ことができる。EFFECT OF THE INVENTION A stamp molding sheet having good moldability can be obtained, and a FRTP molded product having high strength can be obtained.
Claims (1)
と、１，０００ｍ当りの重量が１０〜５００ｇｒのガラ
ス繊維束切断物８０〜５ｗｔ％とよりなることを特徴と
するスタンプ成形用補強材。1. A glass monofilament cut product of 20 to 95 wt%.
And a reinforcing material for stamp molding, which comprises 80 to 5 wt% of a cut glass fiber bundle having a weight per 1,000 m of 10 to 500 gr.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3335868A JPH0816304B2 (en) | 1991-11-27 | 1991-11-27 | Stampable sheet material |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP3335868A JPH0816304B2 (en) | 1991-11-27 | 1991-11-27 | Stampable sheet material |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0641856A true JPH0641856A (en) | 1994-02-15 |
| JPH0816304B2 JPH0816304B2 (en) | 1996-02-21 |
Family
ID=18293282
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP3335868A Expired - Lifetime JPH0816304B2 (en) | 1991-11-27 | 1991-11-27 | Stampable sheet material |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0816304B2 (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013544310A (en) * | 2010-12-02 | 2013-12-12 | トウホウ テナックス ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Fiber preform and composite material member of reinforcing fiber bundle having unidirectional fiber tape |
| JP2014030913A (en) * | 2012-08-01 | 2014-02-20 | Teijin Ltd | Manufacturing method of random mat |
| JP5735631B2 (en) * | 2011-02-28 | 2015-06-17 | 帝人株式会社 | Molded body made of fiber reinforced composite material |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160359A (en) * | 1979-03-20 | 1980-12-13 | Autovox Spa | Device for playing priority track |
-
1991
- 1991-11-27 JP JP3335868A patent/JPH0816304B2/en not_active Expired - Lifetime
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS55160359A (en) * | 1979-03-20 | 1980-12-13 | Autovox Spa | Device for playing priority track |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2013544310A (en) * | 2010-12-02 | 2013-12-12 | トウホウ テナックス ユーロップ ゲゼルシャフト ミット ベシュレンクテル ハフツング | Fiber preform and composite material member of reinforcing fiber bundle having unidirectional fiber tape |
| JP5735631B2 (en) * | 2011-02-28 | 2015-06-17 | 帝人株式会社 | Molded body made of fiber reinforced composite material |
| JP2014030913A (en) * | 2012-08-01 | 2014-02-20 | Teijin Ltd | Manufacturing method of random mat |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0816304B2 (en) | 1996-02-21 |
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